It is important to understand how much debt is owed internally to the central government, at the same time that kind of debt is easier to play with than sovereign debt, at least until the shit hits the fan like in Spain. Taiwan has it's own currency which gives more options than Eurozone countries.
It's really a poor comparison to make though, saying Taiwan could be like Greece, nah.
One interesting thing about debt is that countries can go broke overnight if private debt becomes public debt. Ireland went from something like 60% debt to GDP to 150% debt to GDP in the space of a few years.
This is due to the socializing of banks private debt, something that Taiwanese would just not agree with and quite rightly so!
Plus Taiwanese banks are in better shape in general even if they may be affected by a downturn in real estate, they don't do sublime type loans.